Based on the measurement of noise of an idling lathe C630,the effects of gear tooth friction on change gear noise,and the relation between friction excitation frequency and gearing frequency were analyzed.

The vibration and noise of gear of C630 lathe head stock was tested with noise spectrum analysis technology,and the various frequency components in the different conditions were analyzed,which proves that the friction excitation frequency of gear is two times that of gear meshing frequency.

Study on the frictional self-excited vibrating of the feed system in NC machining tool;

Development of Research on Friction and Wear of High Performance and high Temperature Polymer Composites;

Effect of friction on deforming condition during tube expanding process;

Determination of friction coefficient based on finite element analysis;

Tribology and Wear of MoS_2/Ti Composite Films;

Tribology is the key factor that causes micro-components disabled in micro-electro mechanical system.

Compensating For the Super-Long Precision Rubbing Rollor’s Flexure

In this paper, using infrared dichroism, the researchers quantitatively analyzed the LC scalar order parameters on the surface of an alignment layer after rubbing treatment.

With reference to the special features of Alstom type 330MW sets, the paper analyses the factors that causes high bearing temperature, the development of excessive vibration as well as ways of dealing with the rubbing between stationary and rotating parts.